Comparison

SimpleSigma vs Calculator Notes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SimpleSigma

Features
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■ About SimpleSigma A simple and powerful calculator app for everyday use. From shopping calculations to business tallies, SimpleSigma handles it all. Choose from 3 table types to match your needs. ■ Key Features Simple Table - Extremely simple input - Auto-totaling as you type - Quick sum calculation - Perfect for receipt scanning (Pro - Beta) Duplex Table - Multiply two values automatically - Great for area or unit price calculations - Subtotal display Shopping Table - Price x Quantity = automatic calculation - Custom tax rates - Subtotals at a glance Common Features for All Tables - Swipe keyboard up/down/left/right to move between cells - CSV export - Auto-save ■ Pro Version Benefits Upgrade to SimpleSigma Pro for more power: No Ads Work distraction-free Unlimited Tables Create as many tables as you need (Free: 3 max) Advanced Statistics - Period-based totals (Today, Week, Month, Year) - Daily trend charts - Type breakdown pie charts - Total, Average, Max, Min at a glance - CSV export AppleWatch supported - Simple Table, Sharing with iPhone Receipt OCR (Beta) - Scan receipts with camera - Auto-recognize total amounts - Best suited for Simple Table - Save time on manual entry Starting at $2.99/month Save more with yearly plan! ■ Perfect For - Quick shopping calculations - Business expense tracking - Visualizing spending patterns - Managing multiple projects separately - Ad-free focus ■ Highlights - Extremely simple input design - Swipe keyboard (up/down/left/right) for fast cell navigation - Native iOS interface - Auto-save results - CSV export for data portability - Japanese & English support ■ Free Version Includes - All 3 table types - Up to 3 tables - Core calculation features - Keyboard swipe navigation - CSV export ■ Privacy - All data stored locally on device - No external server uploads - Secure iOS backup ■ Support Questions or feedback? Contact us: applicast3@gmail.com Make calculations smarter with SimpleSigma. Download now and try Pro for full features! Terms of Service: https://gist.github.com/zekoo2026/892cbcbb08ec7a1ce6e54e370acf2b51 Privacy Policy: https://gist.github.com/zekoo2026/12756689700e4afa4c9295cc4e0ba244

About

Calculator Notes

This app combines a calculator with spreadsheet functionality, allowing users to automatically sum item values. It supports unlimited folders and notes, with features like goal setting and batch operations. Widgets are available for home and lock screens.

Highlights
  • Automatic total value calculation
  • Unlimited folders, notes, and items
  • CSV output and sharing
  • Goal setting and progress tracking
  • Batch operations (copy, duplicate, color coding)
  • Home & lock screen widgets
  • Dark mode
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It is a calculator notepad that automatically calculates the total value. A simple spreadsheet application. Widget compatible. All features are completely free to use. - Unlimited folders/notes/items - Automatically calculate the total value of items - CSV output / save file / share to SNS - Set goals and deadlines and display percentages - Batch operations such as copy/duplicate/color coding - filter and sort - Consumption tax calculation and fixed cost settings - Easy input from history - Home & lock screen widget support - dark mode

Screenshots

SimpleSigma4 screens
Calculator Notes4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator Notes at none against SimpleSigma's 2. SimpleSigma's advantage is update cadence (every 6 weeks vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SimpleSigma sells 2 in-app purchases, starting at $2.99 per month. Calculator Notes asks for nothing beyond the download.

UpkeepUpdate frequency

SimpleSigma ships an update every 6 weeks, Calculator Notes every 12 months. The most recent releases landed on September 11, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 8 level
SimpleSigma versus Calculator Notes: the parameters behind the verdict, then further details
ParameterSimpleSigmaCalculator Notes
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 6 weeks — betterEvery 12 months
AdsYesYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS26.026.0
Further details — not scored
Size7 MB11 MB
Age rating4+4+
DeveloperMUTSUAKI KIKUCHIFugaPiyo Inc.

In-app purchases

2 purchases

SimpleSigma

Subscriptions2
  • SimpleSigma Pro (Monthly)$2.991 Month
  • SimpleSigma Pro (Yearly)$29.991 Year
None

Calculator Notes

No in-app purchases

Questions

Is SimpleSigma free?
SimpleSigma is free to download, with in-app purchases available.
Is Calculator Notes free?
Calculator Notes is free to download, with no in-app purchases.
Do SimpleSigma or Calculator Notes have ads?
Both SimpleSigma and Calculator Notes show ads.
Which is updated more often, SimpleSigma or Calculator Notes?
SimpleSigma ships an update every 6 weeks, and Calculator Notes every 12 months. Most recently, SimpleSigma was updated on September 11, 2026 and Calculator Notes on June 1, 2026.

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